A basketball coach recorded the number of points his team scored in each of the 11 games they played.

45 68 74 59 69 70 67 77 72 61 75

What is the interquartile range of the data?

A.
5
B.
8
C.
13
D.
15

answer: finding the extract measurements and knowing the points

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)